Plumber's putty is a clay-like sealing material that remains soft, making it perfect for creating watertight seals around faucets and drains. While caulk has largely replaced it in many applications, ...

Plumber's putty is used under the sink drain, left top, and silicone caulk under the lip of the sink, left bottom, to hold it in place and create a barrier against potential water problems. Mark the ...